SANDUSKY, Ohio (AP) — Cedar Point officials say some visitors to the amusement park were stranded on rides after a “power bump,” but there were injuries.

WJW-TV in Cleveland reports ( ) that park officials were able to get everyone affected off the rides safely and quickly Sunday evening. Park spokesman Bryan Edwards says he was unsure how many visitors were stranded.

The rides affected include the Millennium Force and the Iron Dragon. The TV station says the park worked with Ohio Edison to inspect the rides as a safety precaution.